.px2rem(@name, @px) {
    @{name}: @px / 75 * 1rem;
}
.txh {
    display: flex;
    display: -webkit-flex;
}
.head{
    .txh();
    justify-content: space-between;
    align-items: center;
    width: 90%;
//  .px2rem(p);
    padding-left: 5%;
    .px2rem(height,110);
}
.ain{
    width: 100%;
    .px2rem(height,1224);
    background: #efefef;
    dl{
        text-align: center;
        .px2rem(padding-top,152);
        dt{
            img{
                .px2rem(height,256);
                .px2rem(width,298);
            }
        }
       .dd1{
           .px2rem(font-size,40);
            .px2rem(line-height,85);
//          line-height: ;
       }
        .dd2{
            .px2rem(font-size,27);
            .px2rem(line-height,85);
            color: darkgray;
        }
    }
    button{
         .px2rem(height,60);
         .px2rem(width,215);
         .px2rem(font-size,30);
         border: 1px solid #333333;
         .px2rem(border-radius,10);
//       text-align: center;
         .px2rem(margin-left,250);
    }
}
